Use the unit circle to determine the value of the given expression or state that it is undefined.sin 
A. 
B. -1
C. - 
D. - 
Answer: C
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The graph of a function of the form y = A cos (Bx - C) + D or y = A sin (Bx + C) + D where B > 0 is given. Determine the equation of the function represented by the graph.Use y = sin x 
A. y = -3 sin 
- 2
B. y = -3 sin 
- 2
C. y = -3 sin 
+ 2
D. y = -3 sin 
+ 2
Solve.How many different 4-letter radio-station call letters can be made if the first letter must be K or W, letters may be repeated, and the call letters cannot end in an O?
A. 35,152 B. 456,976 C. 33,800 D. 16,900
Fill in the blank with one of the words or phrases listed below. Not all choices will be used and some choices may be used more than once.
If x2 = a, then x = 
or x = -
. This property is called the 
property.
A. factoring B. quadratic C. square root D. complex
Find the sum.25.96 + 1 + 61.72 + 21.762
A. 110.442 B. 111.442 C. 110.542 D. 110.452